Multi-carrier transmission for hybrid radio frequency with optical wireless communications

Gang Wang; Genshe Chen; Dan Shen; Khanh Pham; Erik Blasch; Tien M. Nguyen

doi:10.1117/12.2177544

22 May 2015 Multi-carrier transmission for hybrid radio frequency with optical wireless communications

Gang Wang, Genshe Chen, Dan Shen, Khanh Pham, Erik Blasch, Tien M. Nguyen

Author Affiliations +

Proceedings Volume 9469, Sensors and Systems for Space Applications VIII; 94690C (2015) https://doi.org/10.1117/12.2177544
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

Radio frequency (RF) wireless communication is reaching its capacity to support large data rate transmissions due to hardware constraints (e.g., silicon processes), software strategies (e.g., information theory), and consumer desire for timely large file exchanges (e.g., big data and mobile cloud computing). A high transmission rate performance must keep pace with the generated huge volumes of data for real-time processing. Integrated RF and optical wireless communications (RF/OWC) could be the next generation transmission technology to satisfy both the increased data rate exchange and the communications constraints. However, with the promising benefits of RF/OWC, challenges remain to fully develop hybrid RF with wireless optical communications such as uniform waveform design for information transmission and detection. In this paper, an orthogonal frequency division multiplexing (OFDM) transmission scheme, which widely employed in RF communications, is developed for optical communications. The traditional high peak-to-average power ratio (PAPR) in OFDM is reduced to improve system performance. The proposed multi-carrier waveform is evaluated with a frequency-selective fading channel. The results demonstrate that bit error rate (BER) performance of our proposed optical OFDM transmission technique outperforms the traditional OWC on-off keying (OOK) transmission scheme.

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Gang Wang, Genshe Chen, Dan Shen, Khanh Pham, Erik Blasch, and Tien M. Nguyen "Multi-carrier transmission for hybrid radio frequency with optical wireless communications", Proc. SPIE 9469, Sensors and Systems for Space Applications VIII, 94690C (22 May 2015); https://doi.org/10.1117/12.2177544

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KEYWORDS

Orthogonal frequency division multiplexing

Wireless communications

Modulation

Telecommunications

RF communications

Radio optics

Data communications

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